July 2013 3.10 UxC 11x (FS): Power supply and motor connection 255
X103: 24 V input
X33: DC-link power
supply
Connection at UMC 11x(FS):
X344: 24 V supply
for motor holding
brakes
X394: Motor
holding brakes
Connecting terminals Assignment
1 +24 V NC or +24 V PLC (max. 2.6 A)
20 V NC
The integrated logic part, the inverter electronics and the integrated
controller unit of the UMC are supplied via X103. The UMC generates the
individual internal supply voltages with an integrated power supply unit,
which complies with Protective Extra Low Voltage (PELV) according to EN
61800-5-1. The internally generated voltages thus have double basic
insulation. This means that a +24 V PLC voltage with simple basic insulation
(ELV as per EN 61800-5-1) is sufficient as supply via X103.
Connecting terminals Assignment
1+U
Z
2–U
Z
The line cross section should be 10 mm
2
.
For connection to a regenerative inverter system, use shielded cables for
reasons of EMC. Route the cables closely to each other and ground on both
ends.
Cable lengths exceeding 3 m require fuse protection (e.g. SITOR 20 A fast).
Connecting terminals Assignment
1 +24 V PLC
20 V PLC
Connecting terminals Assignment
1 Holding brake X80
20 V PLC
3 Holding brake X81
40 V PLC
5 Holding brake X82
60 V PLC
7 Holding brake X83
80 V PLC
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